drm/amdgpu: group BOs by log2 of the size on the LRU v2
This allows us to have small BOs on the LRU before big ones.
v2: fix of by one and list corruption bug
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index e4e7816..5399f3a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -393,6 +393,14 @@
/*
* TTM.
*/
+
+#define AMDGPU_TTM_LRU_SIZE 20
+
+struct amdgpu_mman_lru {
+ struct list_head *lru[TTM_NUM_MEM_TYPES];
+ struct list_head *swap_lru;
+};
+
struct amdgpu_mman {
struct ttm_bo_global_ref bo_global_ref;
struct drm_global_reference mem_global_ref;
@@ -410,6 +418,9 @@
struct amdgpu_ring *buffer_funcs_ring;
/* Scheduler entity for buffer moves */
struct amd_sched_entity entity;
+
+ /* custom LRU management */
+ struct amdgpu_mman_lru log2_size[AMDGPU_TTM_LRU_SIZE];
};
int amdgpu_copy_buffer(struct amdgpu_ring *ring,